baber/WOPTO huggingface dataset:
Patent CA-2077147-C (CA)
Title: Method and device for controlling an optical wavelength converter
Inventor: LE ROY GUY
IPC: H04B10/61
Filed: 1992-08-28
Granted: 1997-08-26
Abstract: This method of control of an optical wavelength converter (2), as a function of the desired emission wavelength, is such that the said wavelength converter having an optical signal input (4) for receiving an optical signal whose wavelength is to be converted, an optical signal output (5) for emitting an optical signal whose wavelength is the desired wavelength, after conversion, and at least one control electrode (6, 7) for applying at least one electrical signal with a view to the control of the wavelength of the optical emission signal, it includes:     - a so-called calibration phase itself including:   +/- the establishing of a law relating one at least of the said electrical control signals to the said desired emission wavelength,   +/- the storing of the said law in memory means (11),     - a so-called operational phase itself including:   +/- an addressing of the said memory means by the desired output wavelength, +/- a digital/analog conversion (121, 122, 161, 162) of the data output by the memory means thus addressed, for application to the said control electrode, or to the said control electrodes     <IMAGE>
Patent CA-2077510-C (CA)
Title: Hydraulic cushioning system for press, having shut-off valve for disconnection of pressure-pin cylinders from power supply upon contact of movable die with workpiece
Inventor: KIRII KAZUNARI
IPC: B21D24/02
Filed: 1992-09-03
Granted: 1997-01-28
Abstract: A  hydraulic  cushioning  apparatus  for  a  press,  having work-supporting pressure pins, hydraulic cylinders  linked with the pressure pins, and a fluid passage connecting a hydraulic power supply to the hydraulic cylinders, to apply a preset hydraulic pressure to the cylinders. The apparatus includes a shut-off valve disposed in the fluid passage for connection and disconnection of the hydraulic power supply to and from the hydraulic cylinders, and a controller for controlling the shut-off valve such that the shut-off valve is closed before a movable die of  the press  comes  into pressing contact with the workpiece,  and is held in the closed position for at least a period which expires when the fluid  in  the  hydraulic  cylinders  rises  to  the  preset pressure level.
Patent CA-2078898-C (CA)
Title: Combinations of alkanoic hydrocarbyl dicarboxylic and carbocyclic alkanoic acids or salts useful as heat transfer fluid corrosion inhibitors
Inventor: MILLER DAVID L
IPC: C23F11/12
Filed: 1992-09-23
Granted: 2004-05-25
Abstract: Corrosion inhibitors containing alkanoic, hydrocarbyl dicarboxylic and carbocyclic-substituted, alkanoic acids or salty give high performance, heat transfer fluids and antifreezes, with improved properties including storage stability.
Patent CA-2080082-C (CA)
Title: Self-plugging blind rivet
Inventor: DENHAM KEITH
IPC: F16B19/10
Filed: 1992-10-07
Granted: 2003-09-09
Abstract: A self-plugging blind rivet 10 comprises a tubular body 14 having a preformed head 34 at one end, and in the bore 36 of which a headed stem 12 is disposed. The stem 12 projects from the head 34 end of the body 14, and the head 18 of the stem 12 is substantially enclosed by a region 42 of the body 14 remote from the preformed head 34. The head 18 of the stem 12 abuts a shoulder 44 provided by a region 43 of the body 14 in which the diameter of the bare 36 is reduced and the wall is thickened. Axially spaced apart annular grooves 46, 48 in the external surface of the body 14 define between them a portion 50 which will collapse to form a blind head when the body 14 is compressed axially by pulling the stem 12 while supporting the preformed head 34.      Finally, the stem head 18 may be pulled into the reduced diameter region 40 of the bore 36 and thereby cause the blind head to be reshaped and forced into compressive engagement with work being fastened. The stem head 18 remains securely enclosed by the body 14, whereby its loss is prevented.
Patent CA-2080495-C (CA)
Title: Multilayer laminated pad and method
Inventor: WOODS MARILYN S
IPC: A45D40/26
Filed: 1991-04-12
Granted: 2002-02-26
Abstract: A disposable hand held laminated pad (10) suitable for the application or removal of liquids and other materials while shielding the hand of the user from the materials includes a base pad (12) having a lower wiping surface (14) and an upper attach-ment surface (16), a thin impervious shield portion (18) coextensive with and attached to the upper attachment surface (16), and a thin handle (20) secured at a lower edge to the impervious shield (18) and extending upwardly therefrom for grasping between fingers of a hand for enabling use thereof without contacting the fingers with the material being applied or wiped. The impervious shield (18) helps prevent contact between a user of the pad (10) and a person on which the pad (10) is being used.
Patent CA-2081898-C (CA)
Title: Optoelectronic device
Inventor: WAKE DAVID
IPC: H01S5/026
Filed: 1991-05-01
Granted: 1997-01-14
Abstract: An optoelectric device comprises a first n-type epitaxial layer (2), an active layer (3) comprising a second epitaxial layer grown on said first layer and a third epitaxial layer (8) of p-type material in the form of a ridge structure (8') selectively grown on or over the active layer, in which a p-n junction is formed in the active layer between a region of p-type material aligned beneath said ridge, and adjacent n-type regions of the active layer, the underlying first layer (2) being wholly n-type. A method of fabricating such a device involves growing an all n-type planar, forming a dielectric mask (5) thereon, growing by selective epitaxy the ridge structure of p-type material, simultaneously forming the p-n junction by diffusion thereon.
Patent CA-2088190-C (CA)
Title: Pizza oven
Inventor: NEVIN IRA
IPC: A21B1/26
Filed: 1993-01-27
Granted: 2000-01-11
Abstract: An oven for pizza and other baked goods includes auxiliary heating means positioned in the baking chamber.      By designing the auxiliary heater to simulate a burning log viewable through the baking chamber access door, the ambience of a wood burning oven is presented to customers.      By control of activation of the auxiliary heater, faster responsiveness and improved control of baking chamber heating is achieved, resulting in improved quality control of baked goods and significantly faster baking times for increased efficiency. By provision of a front central exhaust vent, the need for an oven door is avoided.
Patent CA-2090103-C (CA)
Title: Catalytic lens sterilizing system
Inventor: PERLAKY STEVEN C
IPC: A45C11/00
Filed: 1991-08-20
Granted: 1998-06-23
Abstract: An appliance (10) for sterilizing contact lenses (22) or the like includes a reaction vessel (12) for containing the lenses in sterilizing contact with hydrogen peroxide solution (18) and two catalytic elements (44.46) for decomposing the hydrogen peroxide during the lens sterilization. The first catalytic element (44) decomposes a portion of the initial concentration of hydrogen peroxide in the solution during the lens sterilization, and the second catalytic element (46) accelerates combined decomposition of the reduced concentration of hydrogen peroxide in the solution resulting from decomposition by the first catalytic element (44), in order to achieve suffciently reduced terminal hydrogen peroxide concentration at completion of the lens sterilization for safe contact by the eyes of a wearer with residues of hydrogen peroxide at the terminal concentration which may adhere to the sterilized lenses.
Patent CA-2093899-C (CA)
Title: Shut-in tools
Inventor: BECK HAROLD K
IPC: E21B34/06
Filed: 1993-04-13
Granted: 1998-09-15
Abstract: A downhole shut-in tool includes in one aspect a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool.   An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve.  The drive motor is controlled by a load sensor which senses that the motor has stalled when an actuator engages a movement limiting abutment.  In another aspect  a pilot  valve  is  provided which  can  selectively communicate the pressure differential across the piston so as to repeatedly open and close the shut-in valve element.          Efficient methods of drawdown and buildup testing using such an automated multiple operating shut-in tool are provided.      Associated automated sampling tools are also disclosed.
Patent CA-2096888-C (CA)
Title: Process for the inactivation of viruses in preparations of proteins
Inventor: KEUPER HERMAN
IPC: A61L2/00
Filed: 1993-05-25
Granted: 2004-04-27
Abstract: The invention relates to a process for the inactivation of viruses in a solution of proteins by brief heating.
Patent CA-2100865-C (CA)
Title: Material and material properties from multi-layer blown microfiber webs
Inventor: JOSEPH EUGENE G
IPC: D01F8/04
Filed: 1992-08-11
Granted: 2003-11-04
Abstract: A method for forming melt-blown fiber webs which webs have multiple layers of polymeric material. The method provides novel webs and control over web properties.
Patent CA-2102453-C (CA)
Inventor: OLSEN ROBERT C
IPC: B65D67/02
Filed: 1993-11-04
Granted: 2000-01-11
Abstract: CARRIER STOCK WITH TEAR OPEN TABS                     Abstract Carrier stock formed from a single sheet of resilient polymeric material, such as low density polyethylene, for machine application to substantially identical containers.  The stock is severable to form individual carriers with three longitudinal rows of container-receiving apertures, as defined by integrally joined band segments, which include generally longitudinal outer band segments and generally diagonal inner band segments.  One of the band segments defining each container-receiving aperture has a tear-open tab. The band segments having tear-open tabs include a specified subgroup of the diagonal inner segments and either the longitudinal outer segments, in a first embodiment, or an additional subgroup of the diagonal inner segments, in a second embodiment.  Each band segment having a tear-open tab has slits to facilitate tearing of such band segment when the tear-open tab is pulled.
Patent CA-2103752-C (CA)
Inventor: ROSS VICTOR EMUL
IPC: B07B13/00
Filed: 1993-08-10
Granted: 2004-07-13
Abstract: Particulate material is sorted according to the thermal properties of the particles. The particles (24, 25) to be sorted are initially all cooled to a temperature below the freezing point of a liquid. The cooled particles are then placed on a surface (14) and contacted with the liquid. This has the result that the liquid freezes in the localities of the particles to adhere them to the surface. Heat is then to the particles and those particles (24) with higher thermal diffusivity gain heat more rapidly than other particles (25) and are released first from the surface. Finally, particles (24) which have been released from the surface and those particles (25) which have; not been released from the surface after a certain time lapse are collected separetely.
Patent CA-2104483-C (CA)
Title: Storage stable high azadirachtin solution
Inventor: WALTER JAMES FREDERIC
IPC: A61K36/58
Filed: 1993-08-20
Granted: 2003-07-08
Abstract: Storage stable pesticide compositions comprising neem seed extracts which contain azadirachtin as the active pesticidal ingredient wherein the compositions are characterized by their non-degrading solvent systems and high concentrations, i.e., greater than 10 g/l, of azadirachtin. In one embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume aprotic solvents and less than 15% by volume water. In a second embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume alcohol and less than 5% by volume water.
Patent CA-2105021-C (CA)
Inventor: HUNT ROGER B JR
IPC: C09K11/02
Filed: 1993-08-27
Granted: 2003-11-25
Abstract: A fluorescent lamp comprises at least one layer of a quad-phosphor blend for emitlang visible illumination having a white color. The quad-phosphor blend comprising a first and second green emitting phosphor component with each green emitting phosphor component having different visible emission spectrum principally in the 520 to 560 nm wavelength range. A third blue emitting phosphor component has an emission spectrum principally in the 440 to 470 nm wavelength range. A fourth red emitting phosphor component has an emission spectrum principally in the 590 to 620 nm wavelength range: The first green emitting phosphor component is a alkaline earth metal activated phosphor and the second green emitting phosphor is a rare earth activated phosphor wherein the relative proportions of the phosphor components are such that an enhanced color rendering index is produced as compared to tri-component blends formed from three of the phosphor components.
Patent CA-2107537-C (CA)
Title: Inhibition of tumor cell growth by administration of b7-transfected cells
Inventor: CHEN LIEPING
IPC: A61K45/00
Filed: 1993-10-01
Granted: 2007-01-30
Abstract: The present invention is directed to a method of inhibiting tumor cell growth. Tumor cells from a pateint are recombinantly engineered to express the B7 surface protein and these cells are then readminsistered to the pateint. The presence of the B7 molecule on the tumor cell surface stimulates a broad immunologic response against both the B7-transfected and non-transfected tumor cells and results in the immunologic killing of localized and metastatic tumor cells. B7 transfection of the tumor cells, or cell membranes, serves as a stimulant to engender a potent immunologic response against the surface antigens present on the tumor cells.
Patent CA-2124764-C (CA)
Title: Dual pathway clotting enhancer for blood collection tube
Inventor: GRAPER JANE C
IPC: B01L3/14
Filed: 1994-05-31
Granted: 1997-12-23
Abstract: A blood collection assembly includes a container, optionally covered by a puncturable septum and evacuated. A clotting enhancer in the container activates both the intrinsic and extrinsic coagulation pathways. The invention includes a method to make the clotting enhancer.
Patent CA-2125237-C (CA)
Title: Polyisocyanates containing allophanate and isocyanurate groups, a process for their production from cyclic diisocyanates and their use in two-component coating compositions
Inventor: JACOBS PATRICIA B
IPC: C07D251/34
Filed: 1994-06-06
Granted: 2004-10-05
Abstract: The present invention is directed to a polyisocyanate mixture which i) has an NCO content of 5 to 47% by weight, ii) is prepared from an isocyanate component substantially containing one or more cyclic organic diisocyanates having (cyclo)aliphatically-bound isocyanate groups and iii) contains isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:10, wherein the allophanate groups are formed from urethane groups which are based on the reaction product of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and a monoalcohol containing at least 1 carbon atom and having a molecular weight of up to 2500.      The present invention is also directed to a process for the production of these polyisocyanate mixtures and to their use, optionally in blocked form, as an isocyanate component in two-component coating compositions.
Patent CA-2126271-C (CA)
Inventor: CHIKAMICHI SHOICHI
IPC: H05K3/00
Filed: 1994-06-20
Granted: 2000-10-17
Abstract: Mask patterns and thire exposure times are stored in a memory within a controller. The controller transfers the mask pattern to a memory in the liquid crystal controller. The mask pattern stored in the memory is displayed on the matrix liquid crystal display element. The controller transfers the next mask pattern to memory after the elapse of exposure time. By this exposure apparatus, a plurality of mask patterns is exposed on a photosensitive material. The exposure time of each portion of the photosensitive material is adjusted in three or more grades by exposing a plurality of mask patterns sequentially. If the photosensitive material is positive, the film thickness becomes low in a portion which has a long exposure time and high in a portion which has a short exposure time. A combination of a plurality of mask patterns enables the section of the photosensitive material to be formed into a desired shape.
Patent CA-2129253-C (CA)
Title: A process for the production of plastics containing amide groups
Inventor: KLUTH HERMANN
IPC: C08G18/34
Filed: 1993-01-22
Granted: 2005-06-28
Abstract: Described is a method of producing by splitting off CO2, plastics containing amide groups, by reacting polyfunctional isocyanates, carboxylic acids plus, optionally, alcohols in the presence of tertiary amines, in particular hereto-aromatic amines. The hetero-aromatic amines preferably contain an additional hereto-atom and/or substituents with + I and/or + M effects. The reaction preferably starts at room temperature and can be used to prepare fine-celled foam materials with an acid number of less than 40 and a maximum gross density of 150 g/l within short reaction times at room temperature and without using foaming agents.
Patent CA-2129939-C (CA)
Title: U.v. curable laminating adhesive composition
Inventor: SKOULTCHI MARTIN M
IPC: C09J4/00
Filed: 1994-08-11
Granted: 1998-08-04
Abstract: A print laminating adhesive composition comprising a selected acrylate terminated photopolymerizable oligomer of the formula:     (see fig. I) where A is the residue of a diisocyanate selected from the group consisting of diphenylmethane 4,4 1 diisocyanate and 4,4 1 dicyclohexylmethane diisocyanate; X is the residue of polypropylene glycol having a molecular weight of from about 150 to 4000; R is alkyl or hydroxyalkyl of 2 to 10 carbons; R1 is alkylene of 2 to 3 carbons; and R2 is hydrogen or methyl.
Patent CA-2133497-C (CA)
Title: Mail processing system including data center verification for mailpieces
Inventor: PASTOR JOSE
IPC: G07B17/00
Filed: 1994-10-03
Granted: 1996-07-30
Abstract: A system for controlling the validity or printing of indicias on mailpieces from a potentially large number of users of postage meters includes apparatus disposed in each said postage meter for generating a code and for printing the code on each mailpiece.  The code is an encrypted code representative of the postage meter apparatus printing the indicia and other information uniquely determinative of the legitimacy of postage on the mailpieces.  The keys for the code generating apparatus are changed to change its code generation at predetermined time intervals in each of the meters. A security center includes apparatus for maintaining a security code database and for keeping track of the keys for generating security codes in correspondence with the changes in each generating apparatus and the information printed on the mailpiece by the postage meter apparatus for comparison with the code printed on the mailpiece. There may be two codes printed, one used by the Postal Service for its security checks and one by the manufacturer.  The encryption key may be changed at predetermined intervals or on a daily basis or for printing each mailpiece.
Patent CA-2135511-C (CA)
Title: Humidifier using a nebulizer
Inventor: LUFFMAN DOUGLAS
IPC: F24F6/12
Filed: 1994-11-09
Granted: 1998-07-14
Abstract: A humidifier that can be used on a forced air circulation system for injecting atomized liquid into the cold air portion of that forced air circulation system includes a nebulizer for atomizing water fed thereto.  The humidifier can be used in conjunction with an air cooling system and includes a demineralizing filter for removing white dust before the water reaches the humidifier. the filter can takevarious forms and can include several elements. One form of the humidifier can be connected between a hot air plenum and a  cold air plenum of the forced air circulation system whereby the pressure drop between these two plenums is used to move moisture entrained air into the cold air plenum.
Patent CA-2142577-C (CA)
Title: Antiperspirant deodorant compositions
Inventor: SUN WEI MEI
IPC: A61K8/39
Filed: 1995-02-15
Granted: 2000-02-08
Abstract: Gelled or solid topically-effective compositions comprising a topically-active compound, like an antiperspirant compound; a borate crosslinker; a surfactant, and preferably, a nonionic surfactant or nonionic surfactant blend; a carrier comprising water; and, optionally, a hydrophobic compound, are disclosed.
Patent CA-2145898-C (CA)
Title: Methode pour controler l'execution d'un programme interactif audio-video
Inventor: MENAND JEAN-RENE
IPC: H04N7/173
Filed: 1995-03-30
Granted: 2004-10-26
Abstract: Dans un récepteur audio-vidéo interactif (AVI) recevant un flux de paquets, y compris un répertoire et un programme AVI ayant un identificateur associé dans le répertoire, description d'une méthode permettant le contrôle de l'exécution du programme AVI et comprenant les étapes suivantes. Tout d'abord, chargement du programme AVI dans une mémoire en réponse à la présence du programme AVI dans le flux de paquets. Puis commencer l'exécution du programme AVI chargé. Et puis réduire l'exécution du programme AVI lorsqu'un répertoire identifiant un programme AVI différent est détecté dans le flux de paquets.
Patent CA-2151270-C (CA)
Inventor: SATO JAY KIYOSHI
IPC: B65H75/10
Filed: 1993-12-02
Granted: 1999-01-12
Abstract: A core (20) for compressed core wound paper products such as toilet tissue and paper toweling is disclosed. The core (20) is selectively cut and scored to form folding tab portions (30) that fold radially inward when the care (20) is in a generally flattened configuration. Upon rerounding of the core (20) to a generally cylindrical configurations, the folding tab portions (30) can be unfolded to form circular arcs conforming to the core inner and outer surfaces (28,26). The folding tab portions (30) enable the core (20) to reround to a generally cylindrical configuration that resists reflattening.
Patent CA-2153898-C (CA)
Title: Method for generating single-stranded dna molecules
Inventor: NIKIFOROV THEO
IPC: C12Q1/68
Filed: 1994-01-18
Granted: 2003-10-28
Abstract: A method for generating single-stranded nucleic acid molecules. The molecules contain nuclease resistant modified nucleotides, such that they are resistant to 5'?3'exonucleases.
Patent CA-2154955-C (CA)
Title: Two component dentifrice for the treatment of dentinal hypersensitivity
Inventor: CAMPBELL SHANNON K
IPC: A61K/
Filed: 1995-07-28
Granted: 2006-10-31
Abstract: A two component desensitizing dentifrice composition is disclosed which comprises a first dentifrice component containing a desensitizing potassium salt such as potassium nitrate and a second dentifrice component containing a second desensitizing agent other than a potassium salt the such as SnF2, the second desensitizing agent being incompatible with the potassium salt, the first and second dentifrice components being maintained separate from the other until dispensed for application to teeth requiring relief from dentine hypersensitivity.
Patent CA-2158999-C (CA)
Title: Crystalline benzathine salt of cefonicid and its preparation
Inventor: POLANSKY THEODORE JOHN
IPC: A61P31/04
Filed: 1994-03-24
Granted: 2005-05-03
Abstract: A new salt form of cefonicid and its method of preparation is disclosed.